Ewald von syo



(No Model.)

B. VON SYO.

MAGNETIC SEPARATOR FOR GRAIN.

Patented Nov. 4, 1890.

Inventor ,Ewali van 5 0.

17113110255135. jfiflmw CAu 4.

UNITED STATES PATENT' OFFICE.

EVVALD VON SYO, OF AUGSBURG, GERMANY, ASSIGNOR TO PHILIPP ADAM TAFEL.

MAGNETIC SEPARATOR FOR GRAIN.

SPECIFICATION forming part of Letters Iatent No. 440,070, dated November 4, 1890. Application filed May 14:, 1890. Serial No. 351,791. (No model.)

To all whom it may concern:

Be it known that I, EWALD VON SYo,a subject of the German Emperor and aresident of Augsburg, in the Kingdom of Bavaria, Germany, have invented certain new and useful Improvements in and Relating to Separation of Iron and other Magnetic Impurities from Grain and other Materials, of which the following is a specification.

My invention relates to a novelmethod of and apparatus for separating magnetic impurities, which are frequently found in grain or other granular or pulverized materials; and the object of my said invention is to provide a rotating drum with a number of annularlyarranged magnets over the free poles or sides of which the material to be separated is conducted by means of an inclined channel in such a manner that the magnetic impurities or particles become attracted by the rotating magnets and carried outside the said channel, where they are scraped off and separately collected. I obtain these objects by the arrangements illustrated in the accompanying draw- 2 5 ings, in which I Figure 1 is a vertical section of an apparatus constructed according to my said invention; Fig. 2, a top view of the supplychannel and the rotating drum with the mago nets of which Fi 3 re resents a modification.

The magnets f, which may be either permanent or electro magnets, are arranged within the rotating drum b, so as to have their free 3 5 poles or sides within the upper face of the drum in the form of one or more rings, Figs. 2 and 3. The rotating drum b,which may be actuated from the driving-pulley 7c on the shaft 6 through the medium of the bevel-gears l m, is situated within a corresponding circular aperture of the bottom a of an inclined channel A in such a manner that the face of the rotating drum, the actual poles or sides of the magnets f, and the bottom a of the conduct- 4 5 ing-channel A will form a continuous inclined plane, Fig. 1. In the direction of rotation of the said magnet-drum h, each sidewall 0 cl of the conducting-channel, which is so situated and of such a width in relation to the annular magnetic field that the outlines of the channel form secants of the inner circle of the magnetring, is provided with a port or ports 9 and h for the passage of the magnetic impurities or particles attracted by the magnets f. In consequence of the rotation of the latter, the magnetic impurities or particles are conducted outside of the inclined channel and scraped ofi from the magnets as soon as they meet the solid outer face of the corresponding side walls a d of the channel,

where they may be conveniently discharged.

In this manner the material to be purifiedor separated is caused to pass over two magnetic fields for the purpose of securing a thorough purification or separation of the said material from the magnetic parts. The said conducting-channel A and magnet-drum b is arranged inclined to the horizontal in such a degree as to provide the necessary slope for the material to be transported over the magnetic fields by its gravity.

In several cases for separating magnetic ores from their gangue,I may arrange two or more rotating magnetic drums b in the same channel, or I may arrange the series of magnets side by side, in order to obtain a thorough separation of the magnetic particles, as seen in Fig. 3.

In order to separate the magnetic impurities or particles from diamagnetio parts adhering thereto, I may provide bristles or brushes g made of other material within the portsg and h of the side walls of the conducting-channel A, which are adapted to retain such diamagnetic parts within the channel, such brushes being shown in Figs. 1 and 2.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The apparatus for separating magnetic particles or impurities from grain or other granular or pulverized materials, consisting of the combination of one or more rotating inclined drums in the face of which the free poles or sides of permanent or electro magnets are arranged in the form of a ring or rings, and an inclined channel arranged to receive within apertures of its bottom the said magnet-drum or drums in such a manner that the face of the rotating magnet drum or drums, the free poles or actual sides of the magnets, and the bottom of the conductingsage of the magnetic particles attracted by the magnets, substantially as and for the purpose hereinbefore described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 25th day of April, 1890.

EWALD VON SYO.

Witnesses:

PAUL VOGEL, M. SUNTHEIMER. 

